Facilitating selection of demodulation reference signal ports in advanced networks

ABSTRACT

Facilitating selection of demodulation reference signal port combinations in advanced networks (e.g., 4G, 5G, 6G, and beyond) is provided herein. Operations of a system can comprise evaluating a capability of a mobile device. The operations can also comprise assigning a first group of port combinations for the mobile device based on the capability of the mobile device being a first capability and a second group of port combinations for the mobile device based on the capability of the mobile device being a second capability, resulting in a port combination assignment. The port combination assignment can mitigate a peak-to-average power ratio value.

TECHNICAL FIELD

This disclosure relates generally to the field of mobile communicationand, more specifically, to demodulation reference signal ports inwireless communication systems for advanced networks (e.g., 4G, 5G, 6G,and beyond).

BACKGROUND

To meet the huge demand for data centric applications, Third GenerationPartnership Project (3GPP) systems and systems that employ one or moreaspects of the specifications of the Fourth Generation (4G) standard forwireless communications will be extended to a Fifth Generation (5G)and/or Sixth Generation (6G) standard for wireless communications.Unique challenges exist to provide levels of service associated withforthcoming 5G, 6G, or other next generation, standards for wirelesscommunication.

BRIEF DESCRIPTION OF THE DRAWINGS

Various non-limiting embodiments are further described with reference tothe accompanying drawings in which:

FIG. 1 illustrates an example, non-limiting, message sequence flow chartthat can facilitate downlink data transfer in advanced networks inaccordance with one or more embodiments described herein;

FIG. 2 illustrates an example, non-limiting, system diagram of aMultiple Input Multiple Output (MIMO) system with Demodulation ReferenceSignals (DM-RS) in accordance with one or more embodiments describedherein;

FIG. 3A illustrates resource mapping for antenna port 0 in accordancewith one or more embodiments described herein;

FIG. 3B illustrates resource mapping for antenna port 1 in accordancewith one or more embodiments described herein;

FIG. 3C illustrates resource mapping for antenna port 2 in accordancewith one or more embodiments described herein;

FIG. 3D illustrates resource mapping for antenna port 3 in accordancewith one or more embodiments described herein;

FIG. 4 illustrates an example, non-limiting, graphic representation ofpeak-to-average power ratio with rank 2 with ports 0 and 1 in accordancewith one or more embodiments described herein;

FIG. 5 illustrates an example, non-limiting, graphic representation ofpeak-to-average power ratio with rank 2 with ports 0 and 2 in accordancewith one or more embodiments described herein;

FIG. 6 illustrates an example, non-limiting, graphic representation ofpeak-to-average power ratio with rank 2 with ports 2 and 3 in accordancewith one or more embodiments described herein;

FIG. 7 illustrates an example, non-limiting, system for facilitatingselection of demodulation reference signal port combinations in advancednetworks in accordance with one or more embodiments described herein;

FIG. 8 illustrates a flowchart of an example, non-limiting,computer-implemented method for facilitating selection of demodulationreference signal port combinations in accordance with one or moreembodiments described herein;

FIG. 9 illustrates a flowchart of another example, non-limiting,computer-implemented method for facilitating selection of demodulationreference signal port combinations in accordance with one or moreembodiments described herein;

FIG. 10 illustrates a flowchart of an example, non-limiting,computer-implemented method for facilitating selection of demodulationreference signal port combinations for different devices to mitigatepeak-to-average power ratio values in a wireless network in accordancewith one or more embodiments described herein;

FIG. 11 illustrates an example block diagram of an example mobilehandset operable to engage in a system architecture that facilitateswireless communications according to one or more embodiments describedherein; and

FIG. 12 illustrates an example block diagram of an example computeroperable to engage in a system architecture that facilitates wirelesscommunications according to one or more embodiments described herein.

DETAILED DESCRIPTION

One or more embodiments are now described more fully hereinafter withreference to the accompanying drawings in which example embodiments areshown. In the following description, for purposes of explanation,numerous specific details are set forth in order to provide a thoroughunderstanding of the various embodiments. However, the variousembodiments can be practiced without these specific details (and withoutapplying to any particular networked environment or standard).

Described herein are systems, methods, articles of manufacture, andother embodiments or implementations that can facilitate choosingdemodulation reference signal ports for advanced networks. Morespecifically described herein are aspects related to wirelesscommunication systems and related to facilitating selection ofdemodulation reference signal port combinations in a multi-antennawireless communication systems.

To meet the huge demand for data centric applications, 4G standards canbe applied to 5G, also called New Radio (NR) access. The 5G networks cancomprise the following: data rates of several tens of megabits persecond supported for tens of thousands of users; 1 gigabit per secondcan be offered simultaneously (or concurrently) to tens of workers onthe same office floor; several hundreds of thousands of simultaneous (orconcurrent) connections can be supported for massive sensor deployments;spectral efficiency can be enhanced compared to 4G; improved coverage;enhanced signaling efficiency; and reduced latency compared to LTE.

Multiple Input, Multiple Output (MIMO) systems can significantlyincrease the data carrying capacity of wireless systems. For thesereasons, MIMO is an integral part of the third and fourth generationwireless systems (e.g., 3G and 4G). In addition, 5G systems also employMIMO systems, which are referred to as massive MIMO systems (e.g.,hundreds of antennas at the transmitter side (e.g., network)and/receiver side (e.g., user equipment). With a (N_(t),N_(r)) system,where N_(t) denotes the number of transmit antennas and Nr denotes thenumber of receive antennas, the peak data rate multiplies with a factorof N_(t) over single antenna systems in a rich scattering environment.

In one embodiment, described herein is a system that can comprise aprocessor and a memory that stores executable instructions that, whenexecuted by the processor, facilitate performance of operations. Theoperations can comprise evaluating a capability of a mobile device. Theoperations can also comprise assigning a first group of portcombinations for the mobile device based on the capability of the mobiledevice being a first capability and a second group of port combinationsfor the mobile device based on the capability of the mobile device beinga second capability, resulting in a port combination assignment. Theport combination assignment can mitigage a peak-to-average power ratiovalue.

In some implementations, the operations can comprise, prior to theassigning, determining a transmission of the mobile device is a rank 2transmission. Further to these implementations, the operations cancomprise receiving an indication of the capability of the mobile device.For example, receiving the indication of the capability of the mobiledevice can comprise information related to whether the mobile devicesupports a code division multiplexing group as the first capability ordoes not support the code division multiplexing group as the secondcapability.

According to some implementations, the operations can comprise receivingan indication of the capability of the mobile device. The indication cancomprise receiving an information element in a transmitted signal. Forexample, the information element can be set to a first value based onthe capability being the first capability and set to a second valuebased on the capability being the second capability.

In an implementation, the first group of port combinations can comprisea first port combination comprising ports 0 and 1, a second portcombination comprising ports 2 and 3, and a third port combinationcomprising ports 0 and 2. In an alternative implementation, the firstgroup of port combinations can comprise ports 0 and 2. According to someimplementations, the second group of port combinations can comprise afirst port combination comprising ports 0 and 1, and a second portcombination comprising ports 2 and 3.

The capability of the mobile device can be based on a software releaseversion of the mobile device according to some implementations. Further,the first capability can be related to the software release versionbeing a first software release version and the second capability can berelated to the software release version being a second software releaseversion.

According to some implementations, the operations can comprisefacilitating a transmission of a downlink control information to themobile device. The downlink control information can comprise the portcombination assignment.

In accordance with some implementations, the first capability representsthat the mobile device supports an advanced wireless communicationcapability of a fifth generation wireless network protocol. Further, thesecond capability represents that the mobile device does not support theadvanced wireless communication capability of the fifth generationwireless network protocol.

Another embodiment relates to a method that can comprise obtaining, by anetwork device of a group of network devices, information related to acapability of a mobile device. The method can also comprise assigning,by the network device, a port combination to the mobile device based onthe capability and based on a first determination that the mobile devicesupports a rank 2 transmission. Further, the method can comprisefacilitating, by the network device, a transmission of an indication ofthe port combination to the mobile device.

In accordance with an implementation, assigning the port combination tothe mobile device can comprise assigning the port combination thatcomprises ports 0 and 2 based on a second determination that thecapability of the mobile device is a capability that supports a codedivision multiplexing group.

According to another implementation, assigning the port combination tothe mobile device can comprise assigning the port combination thatcomprises a first combination that comprises ports 0 and 1, a secondcombination that comprises ports 0 and 2, and a third combination thatcomprises ports 2 and 3 based on a second determination that thecapability of the mobile device is a capability that supports a codedivision multiplexing group.

According to yet another implementation, assigning the port combinationto the mobile device can comprise assigning the port combination thatcomprises a first combination comprising ports 0 and 1, and a secondport combination comprising ports 2 and 3 based on a seconddetermination that the capability of the mobile device is a capabilitythat does not support a code division multiplexing group.

The capability of the mobile device can be based on a software releaseversion of the mobile device. For example, a first capability can berelated to the software release version being a first software releaseversion and a second capability can be related to the software releaseversion being a second software release version.

According to an implementation, facilitating the transmission of theindication can comprise sending downlink control information to themobile device. For example, the downlink control information cancomprise the indication of the port combination.

A further embodiment relates to a machine-readable storage medium,comprising executable instructions that, when executed by a processor ofa mobile device, facilitate performance of operations. The operationscan comprise obtaining information related to a first capability of afirst mobile device and a second capability of a second mobile device.The first capability and the second capability can be differentcapabilities. Further, the operations can comprise assigning a firstport combination to the first mobile device based on the firstcapability and a second port combination to the second mobile devicebased on the second capability. The first mobile device and the secondmobile device can be rank 2 transmission devices. For example, assigningthe first port combination and assigning the second port combination cancomprise mitigating a peak-to-average power ratio value in a wirelesscommunications network.

According to some implementations, the first capability indicates thefirst mobile device supports a code division multiplexing group. Thesecond capability indicates the second mobile device does not supportthe code division multiplexing group. In addition, assigning the firstport combination can comprise assigning ports 0 and 2 to the firstmobile device. Further, assigning the second port combination cancomprise assigning a first combination comprising ports 0 and 1 and asecond combination comprising ports 2 and 3 to the second mobile device.

Referring initially to FIG. 1, illustrated is an example, non-limiting,message sequence flow chart 100 that can facilitate downlink datatransfer in advanced networks in accordance with one or more embodimentsdescribed herein. The message sequence flow chart 100 can be utilizedfor new radio, as discussed herein. As illustrated, the message sequenceflow chart 100 represents the message sequence between a network device102 (e.g., a gNB) and a mobile device 104. As used herein, the term“network device 102” can be interchangeable with (or can include) anetwork, a network controller or any number of other network components.One or more pilot signals and/or reference signals 106 can betransmitted from the network device 102 to the mobile device 104. Theone or more pilot signals and/or reference signals 106 can be cellspecific and/or user equipment specific signals. The one or more pilotsignals and/or reference signals 106 can be beamformed ornon-beamformed.

Based on the one or more pilot signals and/or reference signals 106, themobile device 104 can compute the channel estimates and can compute theone or more parameters needed for Channel State Information (CSI)reporting, as indicated at 108. The CSI report can comprise, forexample, Channel Quality Indicator (CQI), Precoding Matrix Index (PMI),Rank Information (RI), Channel State Information Reference Signal(CSI-RS) Resource Indicator (CRI the same as beam indicator), and so on,or any number of other types of information.

The CSI report can be sent from the mobile device 104 to the networkdevice 102 via a feedback channel (e.g., an uplink control or feedbackchannel 110). The CSI report can be sent based on a request from thenetwork device 102, a-periodically, and/or the mobile device 104 can beconfigured to report periodically or at another interval.

The network device 102, which can comprise a scheduler (e.g., ascheduler component), can use the CSI report for choosing the parametersfor scheduling of the mobile device 104 (e.g., a particular mobiledevice). For example, as indicated at 112, the network device 102 canchoose the parameters for downlink transmission based on the channelstate information. The parameters for downlink transmission can include,but are not limited to: Modulation and Coding Scheme (MCS), power,Physical Resource Blocks (PRBs), and so on.

The network device 102 can send the scheduling parameters to the mobiledevice 104 via a downlink control channel (e.g., a downlink controlchannel 114). Upon or after the scheduling parameter information istransmitted, the actual data transfer can take place from the networkdevice 102 to the mobile device 104 over a data traffic channel (e.g.,data traffic channel 116).

Downlink reference signals are predefined signals occupying specificresource elements within the downlink time-frequency grid. There areseveral types of downlink reference signals that are transmitted indifferent ways and used for different purposes by the receiving terminal(e.g., the mobile device 104). For example, downlink reference signalscan include CSI reference signals (CSI-RS) and/or demodulation referencesignals (DM-RS).

CSI reference signals are specifically intended to be used by terminals(e.g., the mobile device 104) to acquire channel-state information (CSI)and beam specific information (beam RSRP). In 5G, for example, CSI-RS ismobile device specific. Therefore, the CSI-RS can have a significantlylower time/frequency density.

Demodulation reference signals (also sometimes referred to as UserEquipment (UE)-specific reference signals), are specifically intended tobe used by terminals for channel estimation for the data channel. Thelabel “UE-specific” relates to the fact that each demodulation referencesignal is intended for channel estimation by a single terminal. Thatspecific reference signal is then only transmitted within the resourceblocks assigned for data traffic channel transmission to that terminal.

Other than the above-mentioned reference signals, there are otherreference signals, namely phase tracking and tracking and soundingreference signals, which can be used for various purposes.

An uplink control channel carries information about Hybrid AutomaticRepeat Request (HARQ-ACK) information corresponding to the downlink datatransmission, and channel state information. The channel stateinformation can comprise CSI-RS Resource Indicator (CRI), Rank Indicator(RI), Channel Quality Indicator (CQI), Precoding Matrix Indicator (PMI),Layer Indicator, and so on. The CSI can be divided into at least twocategories. For example, a first category can be for subband and asecond category can be for wideband. The configuration of subband and/orwideband CSI reporting can be performed through Radio Resource Control(RRC) signaling as part of CSI reporting configuration. Table 1 belowillustrates example contents of an example CSI report for both widebandand subband. Specifically, Table 1 illustrates the contents of a reportfor PMI format indicator=Wideband, CQI format indicator=wideband and forPMI format indicator=subband, CQI format indicator=subband.

TABLE 1 PMI-FormatIndicator = PMI-Formatlndicator = subbandPMI orwidebandPMI and CQI- CQI-FormatIndicator = subbandCQI FormatIndicator =CSI Part II widebandCQI CSI Part I wideband Subband CRI CRI Wideband CQIfor Subband differential CQI the second TB for the second TB of all evensubbands Rank Indicator Rank Indicator PMI wideband PMI subbandinformation (X1 and X2) fields X₂ of all even subbands Layer IndicatorLayer Indicator — Subband differential CQI for the second TB of all oddsubbands PMI wideband Wideband CQI — PMI subband information (X1 and X2)fields X₂ of all odd subbands Wideband CQI Subband differential — — CQIfor the first TB

It is noted that for NR, the subband can be defined according to thebandwidth part of the Orthogonal Frequency-Division Multiplexing (OFDM)in terms of PRBs as shown in Table 2 below, which illustrates example,non-limiting, configurable subband sizes. The subband configuration canalso be performed through RRC signaling.

TABLE 2 Carrier bandwidth part (PRBs) Subband Size (PRBs) <24 N/A 24-724, 8  73-144  8, 16 145-275 16, 32

The downlink control channel (PDCCH) can carry information about thescheduling grants. This can comprise a number of MIMO layers scheduled,transport block sizes, modulation for each codeword, parameters relatedto HARQ, subband locations, and so on. It is noted that all DownlinkControl Information (DCI) formats might not use and/or might nottransmit all the information as shown above. In general, the contents ofPDCCH depends on transmission mode and DCI format.

In some cases, the following information can be transmitted by means ofthe downlink control information (DCI) format: carrier indicator,identifier for DCI formats, bandwidth part indicator, frequency domainresource assignment, time domain resource assignment, Virtual ResourceBlock (VRB)-to-PRB mapping flag, PRB bundling size indicator, ratematching indicator, Zero Power (ZP) CSI-RS trigger, modulation andcoding scheme for each Transport Block (TB), new data indicator for eachTB, redundancy version for each TB, HARQ process number, downlinkassignment index, Transmit Power Control (TPC) command for uplinkcontrol channel, Physical Uplink Control Channel (PUCCH) resourceindicator, Physical Downlink Shared Channel (PDSCH)-to-HARQ feedbacktiming indicator, antenna port(s), transmission configurationindication, Sounding Reference Signal (SRS) request, Code Block Group(CBG) transmission information, CBG flushing out information,Demodulation Reference Signal (DMRS) sequence initialization, and so on.

FIG. 2 illustrates an example, non-limiting, system diagram 200 of aMultiple Input Multiple Output (MIMO) system with Demodulation ReferenceSignals (DM-RS) in accordance with one or more embodiments describedherein. MIMO systems can significantly increase the data carryingcapacity of wireless systems. MIMO can be used for achieving diversitygain, spatial multiplexing gain, and beamforming gain. For thesereasons, MIMO is an integral part of 3G and 4G wireless systems. Inaddition, massive MIMO systems are currently under investigation for 5Gsystems and more advanced systems.

The system diagram 200 is an example, non-limiting conceptual diagram ofa MIMO system with demodulation reference signal. At a gNode Btransmitter, common reference signals, namely CSI-RS 202 are transmittedfor channel sounding. The UE receiver 204 estimates channel quality(typically SINR) from channel sounding (e.g., via a channel estimatordevice 206), and computes the preferred precoding matrix (PMI), rankindicator (RI), and CQI for the next downlink transmission. Thisinformation is referred to as channel state information (CSI) 208. TheUE conveys this information through a feedback channel 210 (e.g., theuplink control or feedback channel 110 as discussed with respect to FIG.1).

For downlink data transmission, the gNode B uses this information andchooses the precoding matrix as suggested by the UE (or the gNodeB canchoose a precoding matrix on its own, which can be other than the UErecommended PMI), CQI, and the transport block size, and so on. Finally,both the reference signal (DM-RS) 212 and the data 214 are multiplied bythe precoding matrix (e.g., pre-coder device 216) selected by the gNodeB and transmitted, indicated at 218. The UE receiver estimates theeffective channel (e.g., the channel multiplied by the precoding matrix)and demodulates the data.

FIGS. 3A to 3D illustrate non-limiting examples of resource mapping fora Demodulation Reference Signal (DM-RS) structure for up to four antennaports in accordance with one or more embodiments described herein.Specifically, FIG. 3A illustrates resource mapping for antenna port 0;FIG. 3B illustrates resource mapping for antenna port 1; FIG. 3Cillustrates resource mapping for antenna port 2; and FIG. 3D illustratesresource mapping for antenna port 3.

As indicated, FIGS. 3A to 3D illustrate an example of DM-RS structurefor four antenna ports (hence maximum four layers and four DM-RS) in aNR system. The first two OFDM symbols in FIGS. 3A-3D are control symbols(indicated by columns 302 and 304).

As illustrated in FIG. 3A, six reference symbols, indicated as the darksquares in the third OFDM symbol (e.g., indicated as third column 306)within a resource-block are transmitted for a single antenna port 0. Asillustrated in FIG. 3B, the same reference symbols, indicated as thedark squares in the third OFDM symbol (indicated as the third column308), are code multiplexed and transmitted on antenna port 1.

In a similar manner, for port 2 (FIG. 3C) and port 3 (FIG. 3D) the sameresource elements are used for transmitting DMRS reference symbols.These are illustrated by the dark squares in the third column 310 ofFIG. 3C and the third column 312 of FIG. 3D. However, they are codemultiplexed as in port 0 (FIG. 3A) and port 1 (FIG. 3B). Note that theresource elements are used for ranks 3 and 4 (ports 2 and 3) areorthogonal in frequency to that of port 0 and port 1. The otherreference symbols in FIGS. 3A to 3D can be utilized for data.

As the number of transmitted layers can vary dynamically, the number oftransmitted DM-RS can also vary. The terminal (e.g., the mobile device104, the UE) can be informed about the number of transmitted layers (orthe rank) as part of the scheduling information via downlink controlchannel as explained with respect to FIG. 1.

Similar to LTE, in NR the OFDM waveform can be used for both downlinkand uplink transmissions. The transmit signals in an OFDM system canhave high peak values in the time domain since many subcarriercomponents are added via an Inverse Fast Fourier Transform (IFFT)operation. Therefore, OFDM systems can have a high Peak-to-Average PowerRatio (PAPR), compared with single-carrier systems. In fact, the highPAPR is one of the most detrimental aspects in the OFDM system, as itdecreases the Signal-to-Quantization Noise Ratio (SQNR) ofAnalog-to-Digital Converter (ADC) and Digital-to Analog Converter (DAC)while degrading the efficiency of the power amplifier in thetransmitter.

Table 3 below depicts the antenna port combination indicated in DCI withType 1 DMRS with front loaded DMRS is equal to one. Specifically, Table3 represents Antenna port(s) (1000+DMRS port), dmrs-Type=1, maxLength=1.

TABLE 3 One Codeword: Codeword 0 enabled, Codeword 1 disabled Number ofDMRS CDM Value group(s) without data DMRS port(s) 0 1 0 1 1 1 2 1 0, 1 32 0 4 2 1 5 2 2 6 2 3 7 2 0, 1 8 2 2, 3 9 2 0-2 10 2 0-3 11 2 0, 2 12-15Reserved Reserved

It can be observed in Table 3 that the transmission rank is indicated bythe number of DMRS ports. For rank 2 transmission it can be observedthat there can be four combinations. A first combination is value 2,DMRS ports 0 and 1. A second combination is value 7, DMRS ports 0 and 1.A third combination is value 8, DMRS ports 2 and 3. A fourth combinationis value 11, ports 0 and 2. Choosing which port combination can beproblematic as some combinations can produce a higher PAPR, while othercombinations do not increase PAPR.

For example, FIG. 4 illustrates an example, non-limiting, graphicrepresentation 400 of peak-to-average power ratio with rank 2 with ports0 and 1 in accordance with one or more embodiments described herein.Illustrated on the horizontal axis 402 is P0 in decibels (dB).Illustrated on the vertical axis 404 is Complementary CumulativeDistribution Function (CCDF). The solid line 406 represents a baselinewhere PAPR is equal to 9.6 dB and CM is equal to 4.01 dB. The dashedline 408 represents DMRS ports 0 and 1. In the case of FIG. 4, for DMRSports 0 and 1, PAPR is equal to 9.6 dB and CM is equal to 3.99 dB.Accordingly, as shown in FIG. 4, the PAPR for the combination 0 and 1(dashed line 408) is nearly the same as that of baseline (solid line406) as the DMRS symbols are not repeated.

FIG. 5 illustrates an example, non-limiting, graphic representation 500of peak-to-average power ratio with rank 2 with ports 0 and 2 inaccordance with one or more embodiments described herein. Illustrated onthe horizontal axis 502 is P0 dBs. Illustrated on the vertical axis 504is CCDF. The solid line 506 represents a baseline where PAPR is equal to9.6 dB and CM is equal to 4.01 dB. The dashed line 508 represents DMRSports 0 and 2. In the case of FIG. 5, for DMRS ports 0 and 2, PAPR isequal to 11.7 dB and CM is equal to 6.56 dB. Thus, when the DMRS symbolsare repeated for the combinations 0 and 2, as shown in FIG. 5, the PAPRis increased by 2 dB, as compared to the baseline (e.g., the solid line506).

FIG. 6 illustrates an example, non-limiting, graphic representation 600of peak-to-average power ratio with rank 2 with ports 2 and 3 inaccordance with one or more embodiments described herein. Illustrated onthe horizontal axis 602 is P0 dBs. Illustrated on the vertical axis 604is CCDF. The solid line 606 represents a baseline where PAPR is equal to9.6 dB and CM is equal to 4.01 dB. The dashed line 608 represents DMRSports 2 and 3. In the case of FIG. 6, for DMRS ports 2 and 3, PAPR isequal to 9.5 dB and CM is equal to 3.98 dB. Accordingly, if thecombination 2 and 3 is used, the PAPR is not increased (as compared tothe baseline), since the symbols are not repeated.

Thus, eliminating the higher PAPR combinations can reduce the scheduler(e.g., a scheduler component of the network device) flexibility as theseports cannot be used for other users (e.g., user devices, mobiledevices). Accordingly, the gains expected with NR cannot be be achievedby removing these combinations.

The various aspects discussed herein can reduce the PAPR in NR systemswhile, at substantially the same time, using all the combinations forrank 2 transmission as specified in the standard. As provided herein,according to a non-limiting implementation, the network (e.g., a networkdevice) can decide whether the UE is Release 15 capable UE or a Release16 or higher capable UE. Further, the network device can choose the portcombinations. For Release 16 or higher UE's the DMRS sequence generationcan be modified such that its sequence generation depends on antennaport or Code Division Multiplexing (CDM) group used for DMRS. Sinceindividual sequences are used for each antenna port/CDM group the PAPRcan be reduced and can be equal to that of data.

The various aspects discussed herein can provide one or more advantages.For example, the network device (e.g., the network, NR) can scheduletransmission rank equal to 2 without using power back off of theamplifier. This in turn can increase the link and system throughput ofthe 5G system, which can provide huge gains as compared to traditionaltechniques.

Further, the term network device (e.g., network node, network nodedevice, radio network node, and so on) is used herein to refer to anytype of network node serving communication devices and/or connected toother network nodes, network elements, or another network node, or anyradio node from where the communication device can receive a signal. Incellular radio access networks (e.g., universal mobiletelecommunications system (UMTS) networks), network nodes can bereferred to as Base Transceiver Stations (BTS), radio base station,radio network nodes, Base Stations (BSs), NodeB, eNodeB (e.g., evolvedNodeB), and so on. In 5G terminology, the network nodes can be referredto as gNodeB (e.g., gNB) devices. Network nodes can also comprisemultiple antennas for performing various transmission operations (e.g.,MIMO operations). A network node can comprise a cabinet and otherprotected enclosures, an antenna mast, and actual antennas. Networknodes can serve several cells, also called sectors, depending on theconfiguration and type of antenna. Examples of network nodes can includebut are not limited to: NodeB devices, Base Station (BS) devices, AccessPoint (AP) devices, and Radio Access Network (RAN) devices. The networknodes can also include multi-standard radio (MSR) radio node devices(e.g., MSR BS), comprising: an MSR BS, an eNode B, a network controller,a radio network controller (RNC), a base station controller (BSC), arelay, a donor node controlling relay, a base transceiver station (BTS),a transmission point, a transmission node, an Remote Radio Unit (RRU), aRemote Radio Head (RRH), nodes in distributed antenna system (DAS), andthe like.

In some embodiments the non-limiting term user equipment (UE) is usedand refers to any type of wireless device communicating with a radionetwork node in a cellular or mobile communication system. Examples of aUE are: target device, device to device (D2D) UE, machine type UE or UEcapable of machine to machine (M2M) communication, PDA, iPad, tablet,mobile terminals, smart phone, Laptop Embedded Equipped (LEE), LaptopMounted Equipment (LME), USB dongles, and so forth.

It is noted that only a 4×4 MIMO system is considered for describing thedisclosed aspects. However, the various aspects are equally applicablefor 8 TX, and in general for any Nt≥2 Tx system whereby PMI and RIestimation is required. This disclosure interchangeably defines PMI asan index within a codebook or the PMI as a precoder itself, depending onthe context.

The embodiments are described in particular for closed-loop MIMOtransmission scheme in NR, LTE based systems. However, the embodimentsare applicable to any Radio Access Technology (RAT) or multi-RAT systemwhere the UE operates using closed-loop MIMO (e.g., HSDPA, Wi-Fi/WLAN,WiMax, CDMA2000, and so on).

The embodiments are applicable to single carrier as well as tomulticarrier (MC) or carrier aggregation (CA) operation of the UE inconjunction with MIMO in which the UE is able to receive and/or transmitdata to more than one serving cell using MIMO. The term carrieraggregation (CA) is also called (e.g., interchangeably called)“multi-carrier system,” “multi-cell operation,” “multi-carrieroperation,” “multi-carrier” transmission and/or reception.

According to some implementations, the port combinations can be assignedbased on the capability of the UE. As the DMRS sequence generation forRelease 15 UE is different compared to Release 16 UEs, the PAPR problemdoes not arise for Release 16 UEs. For example, the sequence generationcan depend on the CDM group thereby avoiding the repletion of thesymbols for Release 16 UEs.

FIG. 7 illustrates an example, non-limiting, system 700 for facilitatingselection of demodulation reference signal port combinations in advancednetworks in accordance with one or more embodiments described herein. Asillustrated in FIG. 7, the system 700 can include a network device 702and a communication device 704 (e.g., a user equipment device, a mobiledevice, and so on). The network device 702 can be included in a group ofnetwork devices of a wireless network. Although only a single networkdevice and a single communication device are shown and described, thevarious aspects are not limited to this implementation. Instead,multiple communication devices and/or multiple network devices can beincluded in a communications system.

The network device 702 can include an analysis component 706, anassignment component 708, a transmitter/receiver component 710, at leastone memory 712, at least one processor 714, and at least one data store716. The communication device 704 can include a sequence component 718,a decoder component 720, a communication component 722, at least onememory 724, at least one processor 726, and at least one data store 728.

The analysis component 706 can be configured to evaluate a capability ofthe communication device 704. For example, the communication device 704(e.g., via the communication component 722) can transmit an indicationof its capability. The indication of the capability of the communicationdevice 704 can be received at the network device 702 via thetransmitter/receiver component 710.

According to some implementations, the indication of the capability canbe received at the network device 702 as an information element in atransmitted signal (e.g., from the communication device 704). Theinformation element can be set to a first value based on the capabilitybeing a first capability and can be set to a second value based on thecapability being a second capability.

In accordance with some implementations, the indication of thecapability can be received at the network device 702 as informationrelated to whether the communication device 704 supports a code divisionmultiplexing group as the first capability or does not support the codedivision multiplexing group as the second capability.

According to some implementations, the capability of the communicationdevice 704 can be based on a software release version of thecommunication device 704. For example, the first capability can berelated to the software release version being a first software releaseversion and the second capability can be related to the software releaseversion being a second software release version.

In accordance with some implementations, the first capability canrepresent that the communication device 704 supports an advancedwireless communication capability of a fifth generation wireless networkprotocol. Further to these implementations, the second capability canrepresent that the communication device 704 does not support theadvanced wireless communication capability of the fifth generationwireless network protocol.

The assignment component 708 can be configured to assign one or moreport combinations for the communication device 704 based on thecapability of the communication device 704. For example, the portcombinations can be a first group of port combinations based on thecapability being a first capability and a second group of portcombinations based on the capability being a second capability. The oneor more port combinations assigned by the assignment component 708 canresult in a port combination assignment. The transmitter/receivercomponent 710 can facilitate a transmission of a downlink controlinformation to the mobile device, wherein the downlink controlinformation comprises the port combination assignment.

Further, based on the assignment of the port combinations, a peakaverage power ratio in a communications network can be reduced and/ormitigated. According to some implementations, prior to assigning theport combinations, a determination can be made by the network device 702that the communications device comprises a rank 2 transmission.

In an example, the assignment component 708 can assign all the portgroups (e.g., a first port combination comprising ports 0 and 1, asecond port combination comprising ports 2 and 3, and a third portcombination comprising ports 0 and 2) to the communication device 704.In another example, the assignment component 708 can assign a singleport group to the communication device 704 (e.g., ports 0 and 2). In yetanother example, the assignment component 708 can assign port groupsthat have a low PAPR value (e.g., a first port combination comprisingports 0 and 1, and a second port combination comprising ports 2 and 3).

Upon or after receipt of the port combination assignment (e.g., via thecommunication component 722), the sequence component 718 can generate ademodulation reference signal sequence based on the information receivedfrom the network device 702 and estimate the channel. In an example,generating the demodulation reference signal sequence can comprisegenerating respective demodulation reference signal sequences forantenna ports of a group of antenna ports.

Further, the decoder component 720 can decode a physical downlink sharedchannel based on a channel estimate determined as a function of thedemodulation reference signal sequence. In some implementations, priorto generating the demodulation reference signal sequence, thecommunication device 704 can obtain information related to a scramblingidentity information. For example, downlink control information cancomprise the scrambling identity information.

The transmitter/receiver component 710 (and/or the communicationcomponent 722) can be configured to transmit to (and/or receive datafrom) the communication device 704 (or the network device 702), othernetwork devices, and/or other communication devices. Through thetransmitter/receiver component 710 (and/or the communication component722), the network device 702 (and/or the communication device 704) canconcurrently transmit and receive data, can transmit and receive data atdifferent times, or combinations thereof. According to someimplementations, the communication component 722 can be configured toreceive, from the network device 702 or other network devices,multimedia content.

The at least one memory 712 can be operatively connected to the at leastone processor 714. Further, the at least one memory 724 can beoperatively connected to the at least one processor 726. The memories(e.g., the at least one memory 712, the at least one memory 724) canstore executable instructions that, when executed by the processors(e.g., the at least one processor 714, the at least one processor 726)can facilitate performance of operations. Further, the processors can beutilized to execute computer executable components stored in thememories.

For example, the memories can store protocols associated with selectionand/or assignment of demodulation reference signal ports as discussedherein. Further, the memories can facilitate action to controlcommunication between the communication device 704 and the networkdevice 702 such that the system 700 can employ stored protocols and/oralgorithms to achieve improved communications in a wireless network asdescribed herein.

The memories can store respective protocols associated with selectionand/or assignment of demodulation reference signal ports in advancednetworks, taking action to control communication between thecommunication device 704 and the network device 702, such that thesystem 700 can employ stored protocols and/or algorithms to achieveimproved communications in a wireless network as described herein. Itshould be appreciated that data stores (e.g., memories) componentsdescribed herein can be either volatile memory or nonvolatile memory, orcan include both volatile and nonvolatile memory. By way of example andnot limitation, nonvolatile memory can include read only memory (ROM),programmable ROM (PROM), electrically programmable ROM (EPROM),electrically erasable ROM (EEPROM), or flash memory. Volatile memory caninclude random access memory (RAM), which acts as external cache memory.By way of example and not limitation, RAM is available in many formssuch as synchronous RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM(SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM),Synchlink DRAM (SLDRAM), and direct Rambus RAM (DRRAM). Memory of thedisclosed aspects are intended to comprise, without being limited to,these and other suitable types of memory.

The processors can facilitate respective analysis of information relatedto selection and/or assignment of demodulation reference signal portcombinations in a communication network. The processors can beprocessors dedicated to analyzing and/or generating informationreceived, a processor that controls one or more components of the system700, and/or a processor that both analyzes and generates informationreceived and controls one or more components of the system 700.

Methods that can be implemented in accordance with the disclosed subjectmatter, will be better appreciated with reference to the following flowcharts. While, for purposes of simplicity of explanation, the methodsare shown and described as a series of blocks, it is to be understoodand appreciated that the disclosed aspects are not limited by the numberor order of blocks, as some blocks can occur in different orders and/orat substantially the same time with other blocks from what is depictedand described herein. Moreover, not all illustrated blocks can berequired to implement the disclosed methods. It is to be appreciatedthat the functionality associated with the blocks can be implemented bysoftware, hardware, a combination thereof, or any other suitable means(e.g. device, system, process, component, and so forth). Additionally,it should be further appreciated that the disclosed methods are capableof being stored on an article of manufacture to facilitate transportingand transferring such methods to various devices. Those skilled in theart will understand and appreciate that the methods could alternativelybe represented as a series of interrelated states or events, such as ina state diagram.

FIG. 8 illustrates a flowchart of an example, non-limiting,computer-implemented method 800 for facilitating selection ofdemodulation reference signal port combinations in accordance with oneor more embodiments described herein. Repetitive description of likeelements employed in other embodiments described herein is omitted forsake of brevity.

Although FIG. 8 is illustrated and described with respect to a specificimplementation (e.g., a network device), the disclosed aspects are notlimited to this implementation. In some implementations, a systemcomprising a processor can perform the computer-implemented method 800and/or other methods discussed herein. In other implementations, adevice comprising a processor can perform the computer-implementedmethod 800 and/or other methods discussed herein. In otherimplementations, a machine-readable storage medium, can compriseexecutable instructions that, when executed by a processor, facilitateperformance of operations, which can be the operations discussed withrespect to the computer-implemented method 800 and/or other methodsdiscussed herein.

At 802 of the computer-implemented method 800, information about thecapability of at least one device (e.g., the communication device 704)can be obtained (e.g., via the transmitter/receiver component 710). Inaccordance with some implementations, the information can indicate asoftware version release number executing on the device. In a specific,non-limiting example, the information can indicate whether the devicesupports release 15 or release 16. Although discussed with respect to asoftware version release number, the capability of the device can bebased on other criteria as discussed herein.

At 804 of the computer-implemented method 800, and for rank 2, portcombinations can be assigned to the device (e.g., via the assignmentcomponent 708). For example, if the device supports CDM groups (e.g.,Release 16), all port combinations can be assigned (e.g. ports 0 and 1,ports 0 and 2, and ports 2 and 3, as discussed with respect to FIGS.4-6). Alternatively, if the device supports CDM groups, only port 0 and2 can be assigned. In some implementations, if the device does notsupport CDM groups (e.g., Release 15), only ports 0 and 1 and ports 2and 3 can be assigned.

Further, at 806 of the computer-implemented method 800, an indicationcan be sent to the mobile device about the chosen port combinations(e.g., via the transmitter/receiver component 710). For example, theindication can be included in downlink control information. Upon orafter the mobile device obtains information about the nscid in DCI, themobile device can generate the DMRS sequence for each port and estimatesthe channel. From the estimated channel, the mobile device can decodethe PDSCH.

FIG. 9 illustrates a flowchart of another example, non-limiting,computer-implemented method 900 for facilitating selection ofdemodulation reference signal port combinations in accordance with oneor more embodiments described herein. Repetitive description of likeelements employed in other embodiments described herein is omitted forsake of brevity.

Although FIG. 9 is illustrated and described with respect to a specificimplementation (e.g., a network device), the disclosed aspects are notlimited to this implementation. In some implementations, a systemcomprising a processor can perform the computer-implemented method 900and/or other methods discussed herein. In other implementations, adevice comprising a processor can perform the computer-implementedmethod 900 and/or other methods discussed herein. In otherimplementations, a machine-readable storage medium, can compriseexecutable instructions that, when executed by a processor, facilitateperformance of operations, which can be the operations discussed withrespect to the computer-implemented method 900 and/or other methodsdiscussed herein.

At 902 of the computer-implemented method 900, information related to acapability of a mobile device can be obtained (e.g., via thetransmitter/receiver component 710). The capability of the mobile devicecan be based on a software release version of the mobile device. Forexample, a first capability can be related to the software releaseversion being a first software release version and a second capabilitycan be related to the software release version being a second softwarerelease version. In another example, the first capability and the secondcapability can be related to whether the mobile device supports CDMgroups or does not support CDM groups.

Further, at 904 of the computer-implemented method 900 a portcombination can be assigned to the mobile device based on the capabilityand based on a first determination that the mobile device supports arank 2 transmission (e.g., via the assignment component 708). In anexample, assigning the port combination to the mobile device cancomprise assigning the port combination that comprises ports 0 and 2based on a second determination that the capability of the mobile deviceis a capability that supports a code division multiplexing group.

In another example, assigning the port combination to the mobile devicecan comprise assigning the port combination that comprises a firstcombination, a second combination, and a third combination based on asecond determination that the capability of the mobile device is acapability that supports a code division multiplexing group. The firstcombination can comprise ports 0 and 1. The second combination cancomprise ports 0 and 2. Further, the third combination can compriseports 2 and 3.

According to yet another example, assigning the port combination to themobile device can comprise assigning the port combination that comprisesa first combination and a second combination. The first combination cancomprise ports 0 and 1. The second combination can comprise ports 2 and3.

A transmission of an indication of the port combination can be sent tothe mobile device at 906 of the computer-implemented method 900 (e.g.,via the transmitter/receiver component 710). For example, thetransmission can comprise sending downlink control information to themobile device. The downlink control information can comprise theindication of the port combination.

FIG. 10 illustrates a flowchart of an example, non-limiting,computer-implemented method 1000 for facilitating selection ofdemodulation reference signal port combinations for different devices tomitigate peak-to-average power ratio values in a wireless network inaccordance with one or more embodiments described herein. Repetitivedescription of like elements employed in other embodiments describedherein is omitted for sake of brevity.

Although FIG. 10 is illustrated and described with respect to a specificimplementation (e.g., a network device), the disclosed aspects are notlimited to this implementation. In some implementations, a systemcomprising a processor can perform the computer-implemented method 1000and/or other methods discussed herein. In other implementations, adevice comprising a processor can perform the computer-implementedmethod 1000 and/or other methods discussed herein. In otherimplementations, a machine-readable storage medium, can compriseexecutable instructions that, when executed by a processor, facilitateperformance of operations, which can be the operations discussed withrespect to the computer-implemented method 1000 and/or other methodsdiscussed herein.

At 1002 of the computer-implemented method 1000, information related toa first capability of a first mobile device and a second capability of asecond mobile device can be obtained (e.g., via the transmitter/receivercomponent 710). The first capability and the second capability can bedifferent capabilities. For example, the first device can be a firstsoftware release version and the second device can be a second softwarerelease version. In another example, one mobile device can support CDMgroups and the other mobile device does not support CDM groups.

Further, at 1004 of the computer-implemented method 1000, a first portcombination can be assigned to the first mobile device based on thefirst capability and a second port combination can be assigned to thesecond mobile device based on the second capability (e.g., via theassignment component 708). In addition, the first mobile device and thesecond mobile device can be rank 2 transmission devices.

In an example, the first capability can indicate the first mobile devicesupports a code division multiplexing group. Further, the secondcapability can indicate the second mobile device does not support thecode division multiplexing group. Further to this example, assigning thefirst port combination can comprise assigning ports 0 and 2 to the firstmobile device. In addition, assigning the second port combination cancomprise assigning a first combination comprising ports 0 and 1 and asecond combination comprising ports 2 and 3 to the second mobile device.This assignment can be selected to mitigate a peak-to-average powerratio value in a wireless communications network.

Described herein are systems, methods, articles of manufacture, andother embodiments or implementations that can facilitate selection ofdemodulation reference signal port combinations in advanced networks.Facilitating selection of demodulation reference signal portcombinations for advanced networks can be implemented in connection withany type of device with a connection to the communications network(e.g., a mobile handset, a computer, a handheld device, etc.) anyInternet of things (IoT) device (e.g., toaster, coffee maker, blinds,music players, speakers, etc.), and/or any connected vehicles (cars,airplanes, space rockets, and/or other at least partially automatedvehicles (e.g., drones)). In some embodiments, the non-limiting termUser Equipment (UE) is used. It can refer to any type of wireless devicethat communicates with a radio network node in a cellular or mobilecommunication system. Examples of UE are target device, device to device(D2D) UE, machine type UE or UE capable of machine to machine (M2M)communication, PDA, Tablet, mobile terminals, smart phone, LaptopEmbedded Equipped (LEE), laptop mounted equipment (LME), USB donglesetc. Note that the terms element, elements and antenna ports can beinterchangeably used but carry the same meaning in this disclosure. Theembodiments are applicable to single carrier as well as to Multi-Carrier(MC) or Carrier Aggregation (CA) operation of the UE. The term CarrierAggregation (CA) is also called (e.g., interchangeably called)“multi-carrier system,” “multi-cell operation,” “multi-carrieroperation,” “multi-carrier” transmission and/or reception.

In some embodiments, the non-limiting term radio network node or simplynetwork node is used. It can refer to any type of network node thatserves one or more UEs and/or that is coupled to other network nodes ornetwork elements or any radio node from where the one or more UEsreceive a signal. Examples of radio network nodes are Node B, BaseStation (BS), Multi-Standard Radio (MSR) node such as MSR BS, eNode B,network controller, Radio Network Controller (RNC), Base StationController (BSC), relay, donor node controlling relay, Base TransceiverStation (BTS), Access Point (AP), transmission points, transmissionnodes, RRU, RRH, nodes in Distributed Antenna System (DAS) etc.

Cloud Radio Access Networks (RAN) can enable the implementation ofconcepts such as Software-Defined Network (SDN) and Network FunctionVirtualization (NFV) in 5G networks. This disclosure can facilitate ageneric channel state information framework design for a 5G network.Certain embodiments of this disclosure can comprise an SDN controllerthat can control routing of traffic within the network and between thenetwork and traffic destinations. The SDN controller can be merged withthe 5G network architecture to enable service deliveries via openApplication Programming Interfaces (APIs) and move the network coretowards an all Internet Protocol (IP), cloud based, and software driventelecommunications network. The SDN controller can work with, or takethe place of Policy and Charging Rules Function (PCRF) network elementsso that policies such as quality of service and traffic management androuting can be synchronized and managed end to end.

Referring now to FIG. 11, illustrated is an example block diagram of anexample mobile handset 1100 operable to engage in a system architecturethat facilitates wireless communications according to one or moreembodiments described herein. Although a mobile handset is illustratedherein, it will be understood that other devices can be a mobile device,and that the mobile handset is merely illustrated to provide context forthe embodiments of the various embodiments described herein. Thefollowing discussion is intended to provide a brief, general descriptionof an example of a suitable environment in which the various embodimentscan be implemented. While the description includes a general context ofcomputer-executable instructions embodied on a machine-readable storagemedium, those skilled in the art will recognize that the innovation alsocan be implemented in combination with other program modules and/or as acombination of hardware and software.

Generally, applications (e.g., program modules) can include routines,programs, components, data structures, etc., that perform particulartasks or implement particular abstract data types. Moreover, thoseskilled in the art will appreciate that the methods described herein canbe practiced with other system configurations, includingsingle-processor or multiprocessor systems, minicomputers, mainframecomputers, as well as personal computers, hand-held computing devices,microprocessor-based or programmable consumer electronics, and the like,each of which can be operatively coupled to one or more associateddevices.

A computing device can typically include a variety of machine-readablemedia. Machine-readable media can be any available media that can beaccessed by the computer and includes both volatile and non-volatilemedia, removable and non-removable media. By way of example and notlimitation, computer-readable media can comprise computer storage mediaand communication media. Computer storage media can include volatileand/or non-volatile media, removable and/or non-removable mediaimplemented in any method or technology for storage of information, suchas computer-readable instructions, data structures, program modules, orother data. Computer storage media can include, but is not limited to,RAM, ROM, EEPROM, flash memory or other memory technology, CD ROM,digital video disk (DVD) or other optical disk storage, magneticcassettes, magnetic tape, magnetic disk storage or other magneticstorage devices, or any other medium which can be used to store thedesired information, and which can be accessed by the computer.

Communication media typically embodies computer-readable instructions,data structures, program modules, or other data in a modulated datasignal such as a carrier wave or other transport mechanism, and includesany information delivery media. The term “modulated data signal” means asignal that has one or more of its characteristics set or changed insuch a manner as to encode information in the signal. By way of example,and not limitation, communication media includes wired media such as awired network or direct-wired connection, and wireless media such asacoustic, RF, infrared and other wireless media. Combinations of the anyof the above should also be included within the scope ofcomputer-readable media.

The handset includes a processor 1102 for controlling and processing allonboard operations and functions. A memory 1104 interfaces to theprocessor 1102 for storage of data and one or more applications 1106(e.g., a video player software, user feedback component software, etc.).Other applications can include voice recognition of predetermined voicecommands that facilitate initiation of the user feedback signals. Theapplications 1106 can be stored in the memory 1104 and/or in a firmware1108, and executed by the processor 1102 from either or both the memory1104 or/and the firmware 1108. The firmware 1108 can also store startupcode for execution in initializing the handset 1100. A communicationscomponent 1110 interfaces to the processor 1102 to facilitatewired/wireless communication with external systems, e.g., cellularnetworks, VoIP networks, and so on. Here, the communications component1110 can also include a suitable cellular transceiver 1111 (e.g., a GSMtransceiver) and/or an unlicensed transceiver 1113 (e.g., Wi-Fi, WiMax)for corresponding signal communications. The handset 1100 can be adevice such as a cellular telephone, a PDA with mobile communicationscapabilities, and messaging-centric devices. The communicationscomponent 1110 also facilitates communications reception fromterrestrial radio networks (e.g., broadcast), digital satellite radionetworks, and Internet-based radio services networks.

The handset 1100 includes a display 1112 for displaying text, images,video, telephony functions (e.g., a Caller ID function), setupfunctions, and for user input. For example, the display 1112 can also bereferred to as a “screen” that can accommodate the presentation ofmultimedia content (e.g., music metadata, messages, wallpaper, graphics,etc.). The display 1112 can also display videos and can facilitate thegeneration, editing and sharing of video quotes. A serial I/O interface1114 is provided in communication with the processor 1102 to facilitatewired and/or wireless serial communications (e.g., USB, and/or IEEE1394) through a hardwire connection, and other serial input devices(e.g., a keyboard, keypad, and mouse). This can support updating andtroubleshooting the handset 1100, for example. Audio capabilities areprovided with an audio I/O component 1116, which can include a speakerfor the output of audio signals related to, for example, indication thatthe user pressed the proper key or key combination to initiate the userfeedback signal. The audio I/O component 1116 also facilitates the inputof audio signals through a microphone to record data and/or telephonyvoice data, and for inputting voice signals for telephone conversations.

The handset 1100 can include a slot interface 1118 for accommodating aSIC (Subscriber Identity Component) in the form factor of a cardSubscriber Identity Module (SIM) or universal SIM 1120, and interfacingthe SIM card 1120 with the processor 1102. However, it is to beappreciated that the SIM card 1120 can be manufactured into the handset1000, and updated by downloading data and software.

The handset 1100 can process IP data traffic through the communicationscomponent 1110 to accommodate IP traffic from an IP network such as, forexample, the Internet, a corporate intranet, a home network, a personarea network, etc., through an ISP or broadband cable provider. Thus,VoIP traffic can be utilized by the handset 1100 and IP-based multimediacontent can be received in either an encoded or decoded format.

A video processing component 1122 (e.g., a camera) can be provided fordecoding encoded multimedia content. The video processing component 1122can aid in facilitating the generation, editing, and sharing of videoquotes. The handset 1100 also includes a power source 1124 in the formof batteries and/or an AC power subsystem, which power source 1124 caninterface to an external power system or charging equipment (not shown)by a power I/O component 1126.

The handset 1100 can also include a video component 1130 for processingvideo content received and, for recording and transmitting videocontent. For example, the video component 1130 can facilitate thegeneration, editing and sharing of video quotes. A location trackingcomponent 1132 facilitates geographically locating the handset 1100. Asdescribed hereinabove, this can occur when the user initiates thefeedback signal automatically or manually. A user input component 1134facilitates the user initiating the quality feedback signal. The userinput component 1134 can also facilitate the generation, editing andsharing of video quotes. The user input component 1134 can include suchconventional input device technologies such as a keypad, keyboard,mouse, stylus pen, and/or touchscreen, for example.

Referring again to the applications 1106, a hysteresis component 1136facilitates the analysis and processing of hysteresis data, which isutilized to determine when to associate with the access point. Asoftware trigger component 1138 can be provided that facilitatestriggering of the hysteresis component 1136 when the Wi-Fi transceiver1113 detects the beacon of the access point. A SIP client 1140 enablesthe handset 1100 to support SIP protocols and register the subscriberwith the SIP registrar server. The applications 1106 can also include aclient 1142 that provides at least the capability of discovery, play andstore of multimedia content, for example, music.

The handset 1100, as indicated above related to the communicationscomponent 1110, includes an indoor network radio transceiver 1113 (e.g.,Wi-Fi transceiver). This function supports the indoor radio link, suchas IEEE 802.11, for the dual-mode GSM handset 1100. The handset 1100 canaccommodate at least satellite radio services through a handset that cancombine wireless voice and digital radio chipsets into a single handhelddevice.

Referring now to FIG. 12, illustrated is an example block diagram of anexample computer 1200 operable to engage in a system architecture thatfacilitates wireless communications according to one or more embodimentsdescribed herein. The computer 1200 can provide networking andcommunication capabilities between a wired or wireless communicationnetwork and a server (e.g., Microsoft server) and/or communicationdevice. In order to provide additional context for various aspectsthereof, FIG. 12 and the following discussion are intended to provide abrief, general description of a suitable computing environment in whichthe various aspects of the innovation can be implemented to facilitatethe establishment of a transaction between an entity and a third party.While the description above is in the general context ofcomputer-executable instructions that can run on one or more computers,those skilled in the art will recognize that the innovation also can beimplemented in combination with other program modules and/or as acombination of hardware and software.

Generally, program modules include routines, programs, components, datastructures, etc., that perform particular tasks or implement particularabstract data types. Moreover, those skilled in the art will appreciatethat the inventive methods can be practiced with other computer systemconfigurations, including single-processor or multiprocessor computersystems, minicomputers, mainframe computers, as well as personalcomputers, hand-held computing devices, microprocessor-based orprogrammable consumer electronics, and the like, each of which can beoperatively coupled to one or more associated devices.

The illustrated aspects of the innovation can also be practiced indistributed computing environments where certain tasks are performed byremote processing devices that are linked through a communicationsnetwork. In a distributed computing environment, program modules can belocated in both local and remote memory storage devices.

Computing devices typically include a variety of media, which caninclude computer-readable storage media or communications media, whichtwo terms are used herein differently from one another as follows.

Computer-readable storage media can be any available storage media thatcan be accessed by the computer and includes both volatile andnonvolatile media, removable and non-removable media. By way of example,and not limitation, computer-readable storage media can be implementedin connection with any method or technology for storage of informationsuch as computer-readable instructions, program modules, structureddata, or unstructured data. Computer-readable storage media can include,but are not limited to, RAM, ROM, EEPROM, flash memory or other memorytechnology, CD-ROM, digital versatile disk (DVD) or other optical diskstorage, magnetic cassettes, magnetic tape, magnetic disk storage orother magnetic storage devices, or other tangible and/or non-transitorymedia which can be used to store desired information. Computer-readablestorage media can be accessed by one or more local or remote computingdevices, e.g., via access requests, queries or other data retrievalprotocols, for a variety of operations with respect to the informationstored by the medium.

Communications media can embody computer-readable instructions, datastructures, program modules or other structured or unstructured data ina data signal such as a modulated data signal, e.g., a carrier wave orother transport mechanism, and includes any information delivery ortransport media. The term “modulated data signal” or signals refers to asignal that has one or more of its characteristics set or changed insuch a manner as to encode information in one or more signals. By way ofexample, and not limitation, communication media include wired media,such as a wired network or direct-wired connection, and wireless mediasuch as acoustic, RF, infrared and other wireless media.

With reference to FIG. 12, implementing various aspects described hereinwith regards to the end-user device can include a computer 1200, thecomputer 1200 including a processing unit 1204, a system memory 1206 anda system bus 1208. The system bus 1208 couples system componentsincluding, but not limited to, the system memory 1206 to the processingunit 1204. The processing unit 1204 can be any of various commerciallyavailable processors. Dual microprocessors and other multi-processorarchitectures can also be employed as the processing unit 1204.

The system bus 1208 can be any of several types of bus structure thatcan further interconnect to a memory bus (with or without a memorycontroller), a peripheral bus, and a local bus using any of a variety ofcommercially available bus architectures. The system memory 1206includes read-only memory (ROM) 1227 and random access memory (RAM)1212. A basic input/output system (BIOS) is stored in a non-volatilememory 1227 such as ROM, EPROM, EEPROM, which BIOS contains the basicroutines that help to transfer information between elements within thecomputer 1200, such as during start-up. The RAM 1212 can also include ahigh-speed RAM such as static RAM for caching data.

The computer 1200 further includes an internal hard disk drive (HDD)1214 (e.g., EIDE, SATA), which internal hard disk drive 1214 can also beconfigured for external use in a suitable chassis (not shown), amagnetic floppy disk drive (FDD) 1216, (e.g., to read from or write to aremovable diskette 1218) and an optical disk drive 1220, (e.g., readinga CD-ROM disk 1222 or, to read from or write to other high capacityoptical media such as the DVD). The hard disk drive 1214, magnetic diskdrive 1216 and optical disk drive 1220 can be connected to the systembus 1208 by a hard disk drive interface 1224, a magnetic disk driveinterface 1226 and an optical drive interface 1228, respectively. Theinterface 1224 for external drive implementations includes at least oneor both of Universal Serial Bus (USB) and IEEE 1394 interfacetechnologies. Other external drive connection technologies are withincontemplation of the subject innovation.

The drives and their associated computer-readable media providenonvolatile storage of data, data structures, computer-executableinstructions, and so forth. For the computer 1200 the drives and mediaaccommodate the storage of any data in a suitable digital format.Although the description of computer-readable media above refers to aHDD, a removable magnetic diskette, and a removable optical media suchas a CD or DVD, it should be appreciated by those skilled in the artthat other types of media which are readable by a computer 1200, such aszip drives, magnetic cassettes, flash memory cards, cartridges, and thelike, can also be used in the exemplary operating environment, andfurther, that any such media can contain computer-executableinstructions for performing the methods of the disclosed innovation.

A number of program modules can be stored in the drives and RAM 1212,including an operating system 1230, one or more application programs1232, other program modules 1234 and program data 1236. All or portionsof the operating system, applications, modules, and/or data can also becached in the RAM 1212. It is to be appreciated that the innovation canbe implemented with various commercially available operating systems orcombinations of operating systems.

A user can enter commands and information into the computer 1200 throughone or more wired/wireless input devices, e.g., a keyboard 1238 and apointing device, such as a mouse 1240. Other input devices (not shown)can include a microphone, an IR remote control, a joystick, a game pad,a stylus pen, touchscreen, or the like. These and other input devicesare often connected to the processing unit 1204 through an input deviceinterface 1242 that is coupled to the system bus 1208, but can beconnected by other interfaces, such as a parallel port, an IEEE 1394serial port, a game port, a USB port, an IR interface, etc.

A monitor 1244 or other type of display device is also connected to thesystem bus 1208 through an interface, such as a video adapter 1246. Inaddition to the monitor 1244, a computer 1200 typically includes otherperipheral output devices (not shown), such as speakers, printers, etc.

The computer 1200 can operate in a networked environment using logicalconnections by wired and/or wireless communications to one or moreremote computers, such as a remote computer(s) 1248. The remotecomputer(s) 1248 can be a workstation, a server computer, a router, apersonal computer, portable computer, microprocessor-based entertainmentdevice, a peer device or other common network node, and typicallyincludes many or all of the elements described relative to the computer,although, for purposes of brevity, only a memory/storage device 1250 isillustrated. The logical connections depicted include wired/wirelessconnectivity to a local area network (LAN) 1252 and/or larger networks,e.g., a wide area network (WAN) 1254. Such LAN and WAN networkingenvironments are commonplace in offices and companies, and facilitateenterprise-wide computer networks, such as intranets, all of which canconnect to a global communications network, e.g., the Internet.

When used in a LAN networking environment, the computer 1200 isconnected to the local network 1252 through a wired and/or wirelesscommunication network interface or adapter 1256. The adapter 1256 canfacilitate wired or wireless communication to the LAN 1252, which canalso include a wireless access point disposed thereon for communicatingwith the wireless adapter 1256.

When used in a WAN networking environment, the computer 1200 can includea modem 1258, or is connected to a communications server on the WAN1254, or has other means for establishing communications over the WAN1254, such as by way of the Internet. The modem 1258, which can beinternal or external and a wired or wireless device, is connected to thesystem bus 1208 through the input device interface 1242. In a networkedenvironment, program modules depicted relative to the computer, orportions thereof, can be stored in the remote memory/storage device1250. It will be appreciated that the network connections shown areexemplary and other means of establishing a communications link betweenthe computers can be used.

The computer is operable to communicate with any wireless devices orentities operatively disposed in wireless communication, e.g., aprinter, scanner, desktop and/or portable computer, portable dataassistant, communications satellite, any piece of equipment or locationassociated with a wirelessly detectable tag (e.g., a kiosk, news stand,restroom), and telephone. This includes at least Wi-Fi and Bluetooth™wireless technologies. Thus, the communication can be a predefinedstructure as with a conventional network or simply an ad hoccommunication between at least two devices.

Wi-Fi, or Wireless Fidelity, allows connection to the Internet from acouch at home, in a hotel room, or a conference room at work, withoutwires. Wi-Fi is a wireless technology similar to that used in a cellphone that enables such devices, e.g., computers, to send and receivedata indoors and out; anywhere within the range of a base station. Wi-Finetworks use radio technologies called IEEE 802.11 (a, b, g, etc.) toprovide secure, reliable, fast wireless connectivity. A Wi-Fi networkcan be used to connect computers to each other, to the Internet, and towired networks (which use IEEE 802.3 or Ethernet). Wi-Fi networksoperate in the unlicensed 2.4 and 5 GHz radio bands, at an 9 Mbps(802.11a) or 54 Mbps (802.11b) data rate, for example, or with productsthat contain both bands (dual band), so the networks can providereal-world performance similar to the basic 16BaseT wired Ethernetnetworks used in many offices.

An aspect of 5G, which differentiates from previous 4G systems, is theuse of NR. NR architecture can be designed to support multipledeployment cases for independent configuration of resources used forRACH procedures. Since the NR can provide additional services than thoseprovided by LTE, efficiencies can be generated by leveraging the prosand cons of LTE and NR to facilitate the interplay between LTE and NR,as discussed herein.

Reference throughout this specification to “one embodiment,” or “anembodiment,” means that a particular feature, structure, orcharacteristic described in connection with the embodiment is includedin at least one embodiment. Thus, the appearances of the phrase “in oneembodiment,” “in one aspect,” or “in an embodiment,” in various placesthroughout this specification are not necessarily all referring to thesame embodiment. Furthermore, the particular features, structures, orcharacteristics can be combined in any suitable manner in one or moreembodiments.

As used in this disclosure, in some embodiments, the terms “component,”“system,” “interface,” and the like are intended to refer to, orcomprise, a computer-related entity or an entity related to anoperational apparatus with one or more specific functionalities, whereinthe entity can be either hardware, a combination of hardware andsoftware, software, or software in execution, and/or firmware. As anexample, a component can be, but is not limited to being, a processrunning on a processor, a processor, an object, an executable, a threadof execution, computer-executable instructions, a program, and/or acomputer. By way of illustration and not limitation, both an applicationrunning on a server and the server can be a component.

One or more components can reside within a process and/or thread ofexecution and a component can be localized on one computer and/ordistributed between two or more computers. In addition, these componentscan execute from various computer readable media having various datastructures stored thereon. The components can communicate via localand/or remote processes such as in accordance with a signal having oneor more data packets (e.g., data from one component interacting withanother component in a local system, distributed system, and/or across anetwork such as the Internet with other systems via the signal). Asanother example, a component can be an apparatus with specificfunctionality provided by mechanical parts operated by electric orelectronic circuitry, which is operated by a software application orfirmware application executed by one or more processors, wherein theprocessor can be internal or external to the apparatus and can executeat least a part of the software or firmware application. As yet anotherexample, a component can be an apparatus that provides specificfunctionality through electronic components without mechanical parts,the electronic components can comprise a processor therein to executesoftware or firmware that confer(s) at least in part the functionalityof the electronic components. In an aspect, a component can emulate anelectronic component via a virtual machine, e.g., within a cloudcomputing system. While various components have been illustrated asseparate components, it will be appreciated that multiple components canbe implemented as a single component, or a single component can beimplemented as multiple components, without departing from exampleembodiments.

In addition, the words “example” and “exemplary” are used herein to meanserving as an instance or illustration. Any embodiment or designdescribed herein as “example” or “exemplary” is not necessarily to beconstrued as preferred or advantageous over other embodiments ordesigns. Rather, use of the word example or exemplary is intended topresent concepts in a concrete fashion. As used in this application, theterm “or” is intended to mean an inclusive “or” rather than an exclusive“or.” That is, unless specified otherwise or clear from context, “Xemploys A or B” is intended to mean any of the natural inclusivepermutations. That is, if X employs A; X employs B; or X employs both Aand B, then “X employs A or B” is satisfied under any of the foregoinginstances. In addition, the articles “a” and “an” as used in thisapplication and the appended claims should generally be construed tomean “one or more” unless specified otherwise or clear from context tobe directed to a singular form.

Moreover, terms such as “mobile device equipment,” “mobile station,”“mobile,” subscriber station,” “access terminal,” “terminal,” “handset,”“communication device,” “mobile device” (and/or terms representingsimilar terminology) can refer to a wireless device utilized by asubscriber or mobile device of a wireless communication service toreceive or convey data, control, voice, video, sound, gaming orsubstantially any data-stream or signaling-stream. The foregoing termsare utilized interchangeably herein and with reference to the relateddrawings. Likewise, the terms “access point (AP),” “Base Station (BS),”BS transceiver, BS device, cell site, cell site device, “Node B (NB),”“evolved Node B (eNode B),” “home Node B (HNB)” and the like, areutilized interchangeably in the application, and refer to a wirelessnetwork component or appliance that transmits and/or receives data,control, voice, video, sound, gaming or substantially any data-stream orsignaling-stream from one or more subscriber stations. Data andsignaling streams can be packetized or frame-based flows.

Furthermore, the terms “device,” “communication device,” “mobiledevice,” “subscriber,” “customer entity,” “consumer,” “customer entity,”“entity” and the like are employed interchangeably throughout, unlesscontext warrants particular distinctions among the terms. It should beappreciated that such terms can refer to human entities or automatedcomponents supported through artificial intelligence (e.g., a capacityto make inference based on complex mathematical formalisms), which canprovide simulated vision, sound recognition and so forth.

Embodiments described herein can be exploited in substantially anywireless communication technology, comprising, but not limited to,wireless fidelity (Wi-Fi), global system for mobile communications(GSM), universal mobile telecommunications system (UMTS), worldwideinteroperability for microwave access (WiMAX), enhanced general packetradio service (enhanced GPRS), third generation partnership project(3GPP) long term evolution (LTE), third generation partnership project 2(3GPP2) ultra mobile broadband (UMB), high speed packet access (HSPA),Z-Wave, Zigbee and other 802.XX wireless technologies and/or legacytelecommunication technologies.

The various aspects described herein can relate to New Radio (NR), whichcan be deployed as a standalone radio access technology or as anon-standalone radio access technology assisted by another radio accesstechnology, such as Long Term Evolution (LTE), for example. It should benoted that although various aspects and embodiments have been describedherein in the context of 5G, Universal Mobile Telecommunications System(UMTS), and/or Long Term Evolution (LTE), or other next generationnetworks, the disclosed aspects are not limited to 5G, a UMTSimplementation, and/or an LTE implementation as the techniques can alsobe applied in 3G, 4G, or LTE systems. For example, aspects or featuresof the disclosed embodiments can be exploited in substantially anywireless communication technology. Such wireless communicationtechnologies can include UMTS, Code Division Multiple Access (CDMA),Wi-Fi, Worldwide Interoperability for Microwave Access (WiMAX), GeneralPacket Radio Service (GPRS), Enhanced GPRS, Third Generation PartnershipProject (3GPP), LTE, Third Generation Partnership Project 2 (3GPP2)Ultra Mobile Broadband (UMB), High Speed Packet Access (HSPA), EvolvedHigh Speed Packet Access (HSPA+), High-Speed Downlink Packet Access(HSDPA), High-Speed Uplink Packet Access (HSUPA), Zigbee, or anotherIEEE 802.XX technology. Additionally, substantially all aspectsdisclosed herein can be exploited in legacy telecommunicationtechnologies.

As used herein, “5G” can also be referred to as NR access. Accordingly,systems, methods, and/or machine-readable storage media for facilitatinglink adaptation of downlink control channel for 5G systems are desired.As used herein, one or more aspects of a 5G network can comprise, but isnot limited to, data rates of several tens of megabits per second (Mbps)supported for tens of thousands of users; at least one gigabit persecond (Gbps) to be offered simultaneously to tens of users (e.g., tensof workers on the same office floor); several hundreds of thousands ofsimultaneous connections supported for massive sensor deployments;spectral efficiency significantly enhanced compared to 4G; improvementin coverage relative to 4G; signaling efficiency enhanced compared to4G; and/or latency significantly reduced compared to LTE.

Systems, methods and/or machine-readable storage media for facilitatinga two-stage downlink control channel for 5G systems are provided herein.Legacy wireless systems such as LTE, Long-Term Evolution Advanced(LTE-A), High Speed Packet Access (HSPA) etc. use fixed modulationformat for downlink control channels. Fixed modulation format impliesthat the downlink control channel format is always encoded with a singletype of modulation (e.g., quadrature phase shift keying (QPSK)) and hasa fixed code rate. Moreover, the forward error correction (FEC) encoderuses a single, fixed mother code rate of ⅓ with rate matching. Thisdesign does not take into the account channel statistics. For example,if the channel from the BS device to the mobile device is very good, thecontrol channel cannot use this information to adjust the modulation,code rate, thereby unnecessarily allocating power on the controlchannel. Similarly, if the channel from the BS to the mobile device ispoor, then there is a probability that the mobile device might not ableto decode the information received with only the fixed modulation andcode rate. As used herein, the term “infer” or “inference” refersgenerally to the process of reasoning about, or inferring states of, thesystem, environment, user, and/or intent from a set of observations ascaptured via events and/or data. Captured data and events can includeuser data, device data, environment data, data from sensors, sensordata, application data, implicit data, explicit data, etc. Inference canbe employed to identify a specific context or action, or can generate aprobability distribution over states of interest based on aconsideration of data and events, for example.

Inference can also refer to techniques employed for composinghigher-level events from a set of events and/or data. Such inferenceresults in the construction of new events or actions from a set ofobserved events and/or stored event data, whether the events arecorrelated in close temporal proximity, and whether the events and datacome from one or several event and data sources. Various classificationprocedures and/or systems (e.g., support vector machines, neuralnetworks, expert systems, Bayesian belief networks, fuzzy logic, anddata fusion engines) can be employed in connection with performingautomatic and/or inferred action in connection with the disclosedsubject matter.

In addition, the various embodiments can be implemented as a method,apparatus, or article of manufacture using standard programming and/orengineering techniques to produce software, firmware, hardware, or anycombination thereof to control a computer to implement the disclosedsubject matter. The term “article of manufacture” as used herein isintended to encompass a computer program accessible from anycomputer-readable device, machine-readable device, computer-readablecarrier, computer-readable media, machine-readable media,computer-readable (or machine-readable) storage/communication media. Forexample, computer-readable media can comprise, but are not limited to, amagnetic storage device, e.g., hard disk; floppy disk; magneticstrip(s); an optical disk (e.g., compact disk (CD), a digital video disc(DVD), a Blu-ray Disc™ (BD)); a smart card; a flash memory device (e.g.,card, stick, key drive); and/or a virtual device that emulates a storagedevice and/or any of the above computer-readable media. Of course, thoseskilled in the art will recognize many modifications can be made to thisconfiguration without departing from the scope or spirit of the variousembodiments

The above description of illustrated embodiments of the subjectdisclosure, including what is described in the Abstract, is not intendedto be exhaustive or to limit the disclosed embodiments to the preciseforms disclosed. While specific embodiments and examples are describedherein for illustrative purposes, various modifications are possiblethat are considered within the scope of such embodiments and examples,as those skilled in the relevant art can recognize.

In this regard, while the subject matter has been described herein inconnection with various embodiments and corresponding figures, whereapplicable, it is to be understood that other similar embodiments can beused or modifications and additions can be made to the describedembodiments for performing the same, similar, alternative, or substitutefunction of the disclosed subject matter without deviating therefrom.Therefore, the disclosed subject matter should not be limited to anysingle embodiment described herein, but rather should be construed inbreadth and scope in accordance with the appended claims below.

What is claimed is:
 1. A system, comprising: a processor; and a memorythat stores executable instructions that, when executed by theprocessor, facilitate performance of operations, comprising: evaluatinga capability of a user equipment; and assigning, based on mitigation ofa peak-to-average power ratio value, a first group of port combinationsfor the user equipment based on the capability of the user equipmentbeing a first capability and a second group of port combinations for theuser equipment based on the capability of the user equipment being asecond capability, resulting in a port combination assignment.
 2. Thesystem of claim 1, wherein the operations further comprise: prior to theassigning, determining a transmission of the user equipment is a rank 2transmission.
 3. The system of claim 2, wherein the operations furthercomprise: receiving an indication of the capability of the userequipment, wherein the receiving comprises receiving information relatedto whether the user equipment supports a code division multiplexinggroup as the first capability or does not support the code divisionmultiplexing group as the second capability.
 4. The system of claim 2,wherein the operations further comprise: receiving an indication of thecapability of the user equipment, wherein the receiving comprisesreceiving an information element in a transmitted signal, and whereinthe information element is set to a first value based on the capabilitybeing the first capability and set to a second value based on thecapability being the second capability.
 5. The system of claim 1,wherein the first group of port combinations comprises a first portcombination comprising ports 0 and 1, a second port combinationcomprising ports 2 and 3, and a third port combination comprising ports0 and
 2. 6. The system of claim 1, wherein the first group of portcombinations comprises ports 0 and
 2. 7. The system of claim 1, whereinthe second group of port combinations comprises a first port combinationcomprising ports 0 and 1, and a second port combination comprising ports2 and
 3. 8. The system of claim 1, wherein the capability of the userequipment is based on a software release version of the user equipment,and wherein the first capability is related to the software releaseversion being a first software release version and the second capabilityis related to the software release version being a second softwarerelease version.
 9. The system of claim 1, wherein the operationsfurther comprise: facilitating a transmission of a downlink controlinformation to the user equipment, wherein the downlink controlinformation comprises the port combination assignment.
 10. The system ofclaim 1, wherein the first capability represents that the user equipmentsupports an advanced wireless communication capability of a fifthgeneration wireless network protocol, and wherein the second capabilityrepresents that the user equipment does not support the advancedwireless communication capability of the fifth generation wirelessnetwork protocol.
 11. A method, comprising: obtaining, by networkequipment, information related to a capability of a user equipment,wherein the network equipment comprises a processor; assigning, by thenetwork equipment, a port combination to the user equipment based on thecapability and based on a first determination that the user equipmentsupports a rank 2 transmission, wherein the assigning the portcombination comprises mitigating a peak-to-average power ratio value inassociated with a communications network; and facilitating, by thenetwork equipment, a transmission of an indication of the portcombination to the user equipment.
 12. The method of claim 11, whereinthe assigning comprises assigning the port combination that comprisesports 0 and 2 based on a second determination that the capability of theuser equipment is a capability that supports a code divisionmultiplexing group.
 13. The method of claim 11, wherein the assigningcomprises assigning the port combination that comprises a firstcombination that comprises ports 0 and 1, a second combination thatcomprises ports 0 and 2, and a third combination that comprises ports 2and 3 based on a second determination that the capability of the userequipment is a capability that supports a code division multiplexinggroup.
 14. The method of claim 11, wherein the assigning comprisesassigning the port combination that comprises a first combinationcomprising ports 0 and 1, and a second port combination comprising ports2 and
 3. 15. The method of claim 11, wherein the capability of the userequipment is based on a software release version of the user equipment,and wherein a first capability is related to the software releaseversion being a first software release version and a second capabilityis related to the software release version being a second softwarerelease version.
 16. The method of claim 11, wherein the facilitating ofthe transmission comprises sending downlink control information to theuser equipment, and wherein the downlink control information comprisesthe indication of the port combination.
 17. A non-transitorymachine-readable medium, comprising executable instructions that, whenexecuted by a processor of network equipment, facilitate performance ofoperations, comprising: obtaining information related to a firstcapability of a first mobile device and a second capability of a secondmobile device, wherein the first capability and the second capabilityare different capabilities; and assigning a first port combination tothe first mobile device based on the first capability and a second portcombination to the second mobile device based on the second capability,wherein the first mobile device and the second mobile device are rank 2transmission devices, and wherein the assigning the first portcombination and the assigning the second port combination comprisesmitigating a peak-to-average power ratio value associated with acommunications network.
 18. The non-transitory machine-readable mediumof claim 17, wherein the first capability indicates the first mobiledevice supports a code division multiplexing group, wherein the secondcapability indicates the second mobile device does not support the codedivision multiplexing group, and wherein the assigning the first portcombination comprises assigning ports 0 and 2 to the first mobiledevice; and the assigning the second port combination comprisesassigning a first combination comprising ports 0 and 1 and a secondcombination comprising ports 2 and 3 to the second mobile device. 19.The non-transitory machine-readable medium of claim 17, wherein thefirst capability and the second capability are respective softwarerelease versions of the first mobile device and the second mobiledevice.
 20. The non-transitory machine-readable medium of claim 17,wherein the operations further comprise: facilitating a transmission ofdownlink control information to the first mobile device and the secondmobile device, wherein the downlink control information comprises thefirst port combination and the second port combination.